[libpng16] Initialize tag_start etc. in png_icc_check_tag_table().
diff --git a/png.c b/png.c
index 343704e..4e48658 100644
--- a/png.c
+++ b/png.c
@@ -816,14 +816,14 @@
#else
# ifdef __STDC__
return PNG_STRING_NEWLINE \
- "libpng version 1.6.33beta04 - September 16, 2017" PNG_STRING_NEWLINE \
+ "libpng version 1.6.33beta04 - September 17, 2017" PNG_STRING_NEWLINE \
"Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson" \
PNG_STRING_NEWLINE \
"Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
"Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \
PNG_STRING_NEWLINE;
# else
- return "libpng version 1.6.33beta04 - September 16, 2017\
+ return "libpng version 1.6.33beta04 - September 17, 2017\
Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson\
Copyright (c) 1996-1997 Andreas Dilger\
Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.";
@@ -2214,9 +2214,13 @@
*/
for (itag=0; itag < tag_count; ++itag, tag += 12)
{
- png_uint_32 tag_id = png_get_uint_32(tag+0);
- png_uint_32 tag_length = png_get_uint_32(tag+8);/* not padded */
- png_uint_32 tag_start = png_get_uint_32(tag+4); /* must be aligned */
+ png_uint_32 tag_id = 0;
+ png_uint_32 tag_length = 0;
+ png_uint_32 tag_start = 0;
+
+ tag_id = png_get_uint_32(tag+0);
+ tag_length = png_get_uint_32(tag+8);/* not padded */
+ tag_start = png_get_uint_32(tag+4); /* must be aligned */
/* The ICC specification does not exclude zero length tags, therefore the
* start might actually be anywhere if there is no data, but this would be